Home / 8,378,805,679.66-12,569,499,921.12-2,856,772,309.78

Finding the Fourth Proportional to 8,378,805,679.66, 12,569,499,921.12 and 2,856,772,309.78

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Solution

The fourth proportional to 8,378,805,679.66, 12,569,499,921.12 and 2,856,772,309.78 is: 4,285,598,770.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378,805,679.66 : 12,569,499,921.12 = 2,856,772,309.78 : x
  2. Step 2: Convert to fraction form
    8,378,805,679.66/12,569,499,921.12 = 2,856,772,309.78/x
  3. Step 3: Cross multiply
    8,378,805,679.66x = 12,569,499,921.12 × 2,856,772,309.78
  4. Step 4: Simplify right side
    8,378,805,679.66x = 35,908,199,322,458,304,512
  5. Step 5: Solve for x
    x = 35,908,199,322,458,304,512/8,378,805,679.66
  6. Step 6: Final answer
    x = 4,285,598,770.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.